In the past when you added pictures to a Google Doc you had to be creative to have the text "appear" to be in front of the image. Well now you officially can change the text wrapping of an image to "In front of text" or "Behind text" to layer images above and underneath text in Docs. If you would like to learn more about how to position and edit images in Docs.
Embedded below is a 1 minute and 9 second YouTube video.
Take care,
Brad